A childhood belief about swearing

When I was like 2, my dad was watching Monday Night Football, and before the commercials, it said "we'll be back after this commercial break", so I stood up on a chair and repeated it, and my dad's all "what did you say?" and i thought I was in trouble, because when he said that, it usually means I said a bad word, so I started crying, and my dad's like "ok time to go to bed, your too sad to stay up" but I didn't hear him b/c I was screaming at the top of my lungs, so he picked me up and then I'm thinking "man I must've said something really bad" and my mom woke up and heard me screaming, and my dad was like to my mom "she said---" but i like pinched his mouth shut b/c i didn't want to get in what I called "double trouble" so he had my fingernail marks on his lips, and I never said that again.